For audio-only participants, there's a parallel phone conference which will
be bridged into the video. You need to dial 1-334-264-8326 to join by phone
and enter 524630 as the participant code when prompted.

See below for video connection details. The CERN location is building 14,
room 4-030. The Fermilab room is called The Far Side, it's in one of the D0
trailers (PK151).